P0244 on Subaru: How to Diagnose & Fix
Turbocharger Wastegate Solenoid B Range/Performance
1 Subaru model · 1 documented issue · $50-$800 repair
P0244 on Subaru by model: symptoms, diagnosis and fix
The VF-series turbochargers on the STI develop boost leaks at intercooler couplers and charge pipe connections, causing inconsistent boost and reduced power. The internal wastegate actuator also develops a characteristic rattle at idle due to worn pivot pins and flapper valve play. While the rattle is mostly cosmetic, boost leaks cause significant power loss and can trigger overboost or underboost codes.
Common Symptoms
- Inconsistent or low boost pressure
- Hissing sound under boost from engine bay
- Metallic rattle at idle from turbo area
- Loss of power under full throttle
- Check engine light for boost-related codes
- Turbo spooling but not making full boost
How to Fix
For boost leaks: inspect all intercooler couplers, charge pipes, and clamps. Replace cracked silicone couplers ($50-$150 for a set) and upgrade to T-bolt clamps. Perform a boost leak test with a pressure tester ($30-$50 DIY tool). For wastegate rattle: replace the wastegate actuator ($200-$400) or upgrade to an aftermarket external wastegate setup ($400-$800). Some owners simply live with the rattle if boost holds steady.
Owner tips & cautions
- TipBuild a DIY boost leak tester from PVC fittings and a tire valve stem for $30. Test at 20 PSI — you will hear every leak. Most STIs have at least one.
P0244 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0244 mean on a Subaru?
P0244 stands for "Turbocharger Wastegate Solenoid B Range/Performance." This code indicates the engine computer detected that turbocharger wastegate solenoid B is not performing within its expected range, so boost control is not behaving as commanded. The wastegate solenoid regulates boost pressure by controlling the wastegate; the computer compares actual boost to the target. When the solenoid's performance is out of range, this code sets. It can cause overboost or underboost, reduced power, and possible engine protection mode. On Subaru it is documented across 1 model: WRX STI.
What are the most common causes of P0244?
The most common causes of P0244 are: Faulty turbocharger wastegate solenoid (B), Stuck or seized wastegate actuator, Boost or vacuum hose leak/disconnection, Wiring or connector fault to the solenoid, Faulty boost pressure (MAP) sensor, Restricted or clogged solenoid passages, Faulty turbocharger. The specific cause varies by vehicle.
How much does it cost to fix P0244 on a Subaru?
Published repair estimates on Subaru range from $50 to $800 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0244 on a different make?
View P0244 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.